# # range语法1： range(num)
# for x in range(10):
#     print(x)
#
#
# # range语法2：range(num1, num2)
# for x in range(5, 10):
#     # 从5开始到10结束，不包含10本身
#     print(x)
#
# # range语法3：range(num1, num2, step)
# for x in range(5, 10, 2):
#     # 从5开始到10结束，不包含10本身,数字间隔是2
#     print(x)

# for x in range(10):
#     print("送玫瑰花")

count = 0
for x in range (1, 100):
    if x % 2 == 0:
        count += 1
print(f"有{count}个")